/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 东莞呵呵
 * Date:2022-05-25
 * Time:16:35
 */
public class TestDemo {
    public static void main(String[] args) {
        Cat cat=new Cat();
        cat.fun2();
        IRunning cat2=new Cat();
        Animal cat3=new Cat();
        cat3.fun3();
    }
}
